Bug 930901 - Move TabState and TabAttributes to their own JSMs r=billm

From c3c8358214e4dbf1a5cc6149ea51cf3d55fdf3dd Mon Sep 17 00:00:00 2001
Bug 930901 - Introduce Utils.jsm r=billm

From 83def9699a103352bed7a49ec69d9e6cceb85e0b Mon Sep 17 00:00:00 2001
Bug 930901 - Rename _SessionFile to SessionFile r=billm

From 88d1ec2f1c54fe85b5a79292562762f1e616310e Mon Sep 17 00:00:00 2001

--HG--
rename : browser/components/sessionstore/src/_SessionFile.jsm => browser/components/sessionstore/src/SessionFile.jsm